Chase-fastening.



R. T. GBOOMESL CHASE FASTENING.

APPLICATION FILED AUGLIS. I917.

1 ,27 2,659. Patented July 16, 1918.

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n. T. GROOMES. 'CHASE FASTENING.

APPLICATION FILED AUG.|5. 191?- Patented July 16, 1918.

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CHASE-FASTENING.

Specification of Letters Patent.

Patented July 16, 1918.

Application filed August 15, 1917. Serial No. 186,320.

To all whom it may concern:

Be it known that I, REID T. GnooMEs, a. citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented'new and useful Improvements in Chase-Fastenings, of which the following is a specification;

This invention relates to devices for holding printers chases on the beds of'printing presses and its object is to provide a simple and eflicient device of this kind which can be readily adjusted to hold the chase.

With the object stated in view, the invention consists in a novelcombination and arrangement of parts to be hereinafter .de-

scribed and claimed and in order that the same may be better understood, reference is had to the accompanying drawings forming a )art of this specification.

In the drawings,

Figure 1 is a plan view, partly broken away, showing the application of the invention;

Fig. 2 is a sectional detail on the line 2-2 of Fig. 1;

Fig. 3 is a plan View of one of the lock-J ing members;

Fig. 4 is a plan view, partly broken away, showing a modification;

Fig. 5 is a cross section on the line 5-5 of Fig. 4; and

Fig. 6 is a cross section on the line 6-6 of Fig. 4.

Referring specifically to the drawings, 10 denotes the bed of a printing press provided at its edges with the usual parallel abutments 11 between which the chase 12 is mounted. In the inner, facing edges of the abutments 11 are conical recesses 13 arranged in a longitudinalseries.

On the bed 10, between the abutments 11 is laid a plate 14 having its ends beveled in opposite directions. This plate is shorter than the distance between the abutments, and between the latter and the beveled ends of the former are placed wedge plates 15. These wedge plates seat squarely at one end against the recessed edges of the abutment's,

and at their other ends they seat against the beveled ends of the plate 14, being correspondingly. beveled. The, ends of the plates 15 which seat against the abutments 11,.

have projecting studs 16 fitting in the cesses 13. 1

Adjacent to each end of the plate 14, parallel to the bevel, is a slot 17, and in the beveled edges of said plate are recesses 18 which are intersected by the slots 17. From i the beveled ends of the plates 15 project tenons 19 which extend into the recesses 18, and

between the abutments 11 and adjacent to a transverse bar 21 at one end of the bed. Thls bar 21 serves as a contactlng abutment for one end of the chase, it being adjustable by screws 22 threaded through lugs 23 on the bed 10. In order that the chase may be fastened down on the bed 10, its end opposite the end which is engaged by the bar 21 is engaged by the hereinbefore described plate 14 and after the latter is clamped down in place on the bed, the adjusting screws 22 may be operated so that the chase is now securely held between the plate 14 and the bar 21, said plate therefore serving as an abutment for one end of the chase. The plate 14 can be placed crosswise on the bed 10 at any distance from the bar 21 to accommodate chases of different lengths.

Adjustment of the plates 14 along the abutments 11 for the purpose stated is offected by sliding the plate 1.4 in a direction to allow the plates 15 to be drawn inwardly a sufficient distance to take the studs 16 out of the recesses 13. The entire device can now be set at the desired place, and it is securely locked in position by pushing the plate 14 in a direction to Wedge the plates 15 outward to insert the studs 16 into the recesses 13. The screws 20 are next tightened up, which locks the plates 14 and 15 together, and holds the device firmly in place between the abutments 11.

The modified structure illustrated in Figs. 4 to 6 comprises the following parts:

The plates 14 and 15 constructed and arranged as hereinbefore described are retained. However these plates seat slidably between top and bottom plates 24 connected in spaced relation to accommodate the same. The spacing of the plates 24 is obtained by a spacer strip 25 therebetween at one of its longitudinal edges, and angular spacer strips '26 at the opposite edge, leaving enough space at this edge portion to allow the corresponding edge portion 'of the plate 14 to project. The spacer strips do not extend around the ends of the plates 24 a sufficient distance to obstruct the studs 16 on the plates 15.

The plates 15 have upstanding guide pins 27 working in slots 28 in the top plates 211. The plate 14 has upstanding pins 29 passing through slots 30 in the top plate 2a and rising therefrom a sufficient distance to serve as finger holds to facilitate n'lanipulation of the plate 1%. The guide pins 27 also afl'ord convenient means for retracting the plates 15, they being long enough to serve asfinger holds.

I claim 1. A fastening for printerschases, comprising an abutment plate having its ends oppositely beveled, and its longer edge adapted to engage the end of the chase, locking plates seating against the ends of said plate and having their abutting ends correspondingly beveled, retainingstuds excoplel of. thin patent may be obtained for five cent! each, by addressing; the commissioner of Patents,

tending from the outer ends of the, locking plates, and keepers for said studs.

2. A. fastening for printers chases, comprising a pair of spaced locking plates movable into locking position by an outward movement relative to each other, a wedge plate seating between said plates for efiecting such movement, and having its longer edge adapted to engage the chase, retaining studs extending from the outer ends of the locking plates, and keepers for said studs.

3. A fastening for printers chases, comprising a plurality of plates abuttingin-end to end relation, the abutting ends of the .plates being beveled in a direction to force the end plates outward when the middle plate is moved transversely, said middle plate having its longer edge adapted to engage the chase, retaining studs extending from the outer ends of the end plates, and keepers for said studs.

In testimony whereof I aflix my signature.

REID TGROOMES.

Washington, .D. ,G. 

